Image generation (gemini-3-pro-image-preview) — aspect ratio and resolution

POST

/v1beta/models/gemini-3-pro-image-preview:generateContent

• Fixed-model image generation with gemini-3-pro-image-preview
• Control aspect ratio and resolution via generationConfig.imageConfig
• Supports multimodal input with text + reference images (inline_data)
• Official docs: Gemini image editing

Authorizations

bearer

Type

HTTP (bearer)

Request Body

application/json

object

object[]

Required

object

Required